Abrading-machine.



W. A. REED.

ABRADING MACHINE.

111P11c1111o11F|LED1uNE26,1911.

CULUMBIA PLANOURAPH C0.. WASHINGTON. D. C.

w. A. REED. ABRADING MACHINE.

APPLICATION FILED .IUNE26, 19H.

Patented Jan. 11, 1916.

2 SHEETS-SHEET 2.

I/l//T/VESSES f M WM pNiTEn sTATEs PATENT maaien,

WILLIAM A. REED, or CHELSEA,A MASSACHUSETTS, AssIGNoE To UNITED SHOE MACHINERY COMPANY, or PATEESON, NEW JERSEY, A CORPORATION or NEW JERSEY.

ABEADING-MACHINE.

" Application led June 26, 1911.

To' all vwhom'z'tmay Concern :Be it known that I, VILLIAM A. REED, a citizen of the United States, f residing at Chelsea, in the county of Suffolk and btate of Massachusetts, have invented certain Improvement-s in Abrading-Machines, of 1which the followingdescription, in connection With the accompanyingdrawing, is a specification, like reference characters on the drawings indicating like parts in the several figures. i

This 'in'ventionrelates to Aabrading and similar'm'achines the Waste product of which consists in Wholeor in part of small particles which arevcarried aWay `byan exhaust current, and is herein illustrated as em bodied in a machine for builing theI- bottoms of boots and slices. i

The general object of the'invention isto conserve and 'concentrate the forcent-the draft and toV apply `it solely tothe tool or tools `which are actually 'Operating upon the Work. i

To this end one feature of the' invention consists in a macliine havingan operating tool and an exhaust pipe arranged to Withdraw Waste material caused by the action of said tool upon the Work, of means normally closing the exhaust pipe While 'no Work is beine' oaerated uoon and means larranged for convenient actuation 'upon presentation of a piece of ivorkto said tool for opening said closing means.

In theA illustrative' machine,` the closing means takes the form of a valve Which `is opened by the pressure'of the Work against an actuating *member and the consequent movingfof' said member. Under these circumstances it is desirable "that a slight movement only 'of the valve-actuating member should be required; and accordingly, another vfeature of the invention consists in a machine of the class describedl'of a valve for controlling the exhaust current, means operated by the presentation `of the Work for partially opening said valve,`and means operated by the exhaust current Vfor thereafter completing the opening movement. vAnd preferably the last-named means takes the form of a second valve located in a branch pipe so that 'the opening of one valve closes the'other.

The illustrative machine is shown as provided With a plurality ofoperating tools from which separate passages or branches lead to the exhaust pipe, said machine being Specification of Letters Patent.

connected withV the usual Patented Jan. 11, 1916.

Serial No. 635,446.

designed for the use of a single operator Who presents the Work selectively to one tool or another. Since only one tool is operating upon the Work at any given moment it is desirable that the Whole force of the exhaust current be applied to that tool.

Accordingly, another feature of the invention consists in a `machine having a plurality of operating tools, of an exhaust pipe and passages leading from said tools to said pipe, of valves for controlling said passages and means for simultaneously opening one valveand closing another. And preferably, as illustrated, this means is actuated by the presentation of the Work in` position to `be operated upon.

'-These and other features of the invention including certain details of construction and combinations of parts Will be set forth in connection with an illustrative machine and will be pointed out in the appended claims. Referringnow to the accompanying drawings :lfigure l isa plan of a portion of a machine for'buiiing boots and shoes in which the present invention is embodied;` F ig. 2 is a side elevation of a portion of the machine; Fig. 3 is al detail showing the mounting of the' valves or dampers; and Fig. 4l is a pers'pectiveishowing the lining of the hood togetheriiwith the valves and their actuating mechanism.

Referring more particularly to Figs. 1 anc 2, the builing rolls 1 and 3 are fast to a shaft wvhiohvis adapted to be rotated by a pulley 7 and belt S and to be longitudinally reciprocated by ay bell-crank lever 9 and a rod4 11, said rod and belt being' operatively counter-shaft, not

shown. The rolls are partially inclosed in the usual manner by a casting 13 and a plate 15,'and from the rear end an exhaust pipe 17 leads to a main exhaust pipe, in case the factoryis lit-ted with a blower system. or to an* exhaust fan which is commonlv driven from the counter-shaft `of "the machine. thus fardescribed the machine is of a Wellknown, commercial type; and the details of its construction will not be further set forth, since the invention is applicable generally to machines in which a current of air removes the Waste material caused by the action of the tool upon the Work.

Located within the casting which partially incloses the roll is a lining 19 of suitable sheet material, said lining being ap- AS W proximately funnel-shaped and terminating in an outlet 21 which tits within the exhaust pipe 17. Extending mediallv of this lining 19 is a partition 23 which thus forms two passages each leading from one of the rolls to the exhaust pipe, and at the inner end of said partition is located an upright spindle 25 which is rotatably7 mounted in the casting 13. This spindle has upon its lower end an enlarged portion 27 and a gear 29, and its upper end projects through a washer 31 and receives a cottcr pin 33 by which it is held in place. The body portion of the spindle is rectangular in cross section, and to it is clamped, by means of a bent plate 35, a sheet of metal forming two valves 37 and 39. As will be seen by reference to Fig. 4 one of these valves is normally in closed position with a large surface exposed to the action of the exhaust current so that it is held thereby in the position shown, while the other valve is normally in open position and extends approximately in the direction in which the exhaust current is moving so that a small surface is exposed to the action of said current. rlhus, owing to the relative position of the parts, the force of the exhaust current is exerted entirelv upon one valve and tends to hold that valve closed and to hold the other valve against the partition 23 which serves in this connection as a stop. It should also be observed that as the valve 37 is swung to the left an increasing extent of it will be exposed to the action of the exhaust current while a decreasing extent of the valve 39 will be so exposed until a point is reached where the exhaust current willvoperate to close the valve 37 and open the valve 39. 1f now the valve 39 is moved toward its closed position exactly the reverse conditions will be produced so that the closing movements of the valves are automatically effected by the exhaust current.

In order to provide means for partially opening and closing the valves a gear 34 which meshes with the gear 29 is angular-ly movable about the pivot 36, and to this gear there is fastened, by means of pins 38, a lever 41 which may be actuated in any suitable manner.

In the illustrative machine the presentation of a piece of work to one of the rolls operates to direct the draft entirely upon that roll, and to this end contact members 43 and L15 are provided in the form of felt disks which are clamped fast to said lever by bolts 47, the upper ends of which are Screw threaded to receive flat nuts 49. The purpose of this method of fastening the disks in position is to permit them to be turned so as to expose a new portion to the work when the old portion has become worn. These members 43 and t5 are arranged in the illustrated machine below the hurling rolls in the path of presentation of the shoe so that, as the operator presents a shoe to the under surface of a roll, the valve or damper which controls the draft upon that roll is automatically opened and the other valve or damper closed. 1t will be obvious that the contact member may be moved to its extreme inner position by the shoe if desired, but that it is necessary merely to move it part way whereupon the exhaust current will operate to complete the opening movement of the valve and at the same time move the contact member to its extreme inner position in which it will not interfere with the proper presentation of a shoe to the bufling roll. v

Although the invention has been set forth in connection with a buiiing machine in which a valve is automatically actuated by presenting a shoe to the machine, it should be understood that the invention is limited in the scope of its application neither to the particular machine shown and described nor to the automatic actuation of the valve.

Having thus described my invention1 what I claim and desire to secure by Letters Patent of the United States is 1. A machine of the class described hav-` ing an operating tool and an exhaust pipe arranged to withdraw waste material caused by the operation of said tool in combination with a valve for controlling said pipe, means for partially opening said valve, and a member of sutlicient area when acted upon by the exhaust current to enable it to acuate the valve and movable with said valve into the path of the exhaust current whereby the action of said current upon said member completes the opening of said valve.

2. A machine of the class described having a plurality of operating tools, an exhaust pipe, and passages leading from said tools t0 said pipe, in combination with valves for closing said passages, and amember movable to open and close said valves,l said member being located to be engaged by the work as it is presented to the operating tools.

3. A machine of the class described having two operating tools, an exhaust pipe through which a current of air is drawn, and passages leading from said tools to said pipe, in combination with valves one of which normally extends across one of the passages while the other extends approximately in the direction of the exhaust cur rent, and means for moving said valves angularly to a position in which the exhaust current will tend to reverse the effective positions of the valves.

et. A machine of the class describedhaving two tools, an exhaust pipe through which a current of air is drawn, a hood partially inclosing said tools, said hood being divided by a partition to form a separate passage leading from each tool to the exhaust pipe, two valves lrigidly connected,

.arranged at an angle to each other and angularly movable about an axis located in the plane of the partition, one valve being normally held in closed position and the other in open position against the partition by the exhaust current, and means operated by presentation of a piece of work to one of the tools for moving said valves to a position in which the current will act to close the valve which was previously open and to hold open the valve which wasV previously closed.

5. A machine of the class described having two tools, an exhaust pipe through which a current of air is drawn, said pipe having forks leading to said tools, and two valves arranged at an angle to each other the angular relation of said valves to each other and to the forks being such that when one valve is closed the other presents its surface of smallest dimension to the action of the exhaust current.

6. A machine of the class described having a plurality of operating tools, an exhaust pipe, and passages leading from said tools to said pipe, in combination with valves for controlling said passages, and actuating members for said valves arranged in the path of presentation of the work to said tools.

7. A machine of the class described having a plurality of operating tools, an exhaust pipe, and passages leading from said tools to said pipe, in combination with valves for controlling said passages, a spindle upon which said valves are mounted, a gear fast to said spindle, and means for moving said gear angularly arranged to be engaged by the work as it is presented in position to be operated upon by one of said tools.

8. A buiiing machine for boots and shoes having two bui'ling rolls, an exhaust pipe, and passages leading from said rolls to said pipe, in combination with valves for controlling said passages, a spindle upon which said valves are mounted at an angle to each other and actuating means for said valves arranged to be engaged by the shoe as it is presented to be bufi'ed for simultaneously operating the valves to close one passage and open the other.

9. A machine of the class described having, in combination, two operating tools, an exhaust pipe having branches leading to said tools, valves for controlling said branches, a pivot for said valves located at the junction of said branches, said valves being arranged at an angle to each other and being arranged each to swing forward toward its. corre sponding operating tool to open the branch which it controls.

10. A machine of the class described having, in combination, an operating tool, an exhaust pipe through which a draft is produced to remove dust generated by the operation of said tool, said pipe having two branches, one of which leads to said tool, two valves for controlling said branches, said valves being arranged at an angle to each other and angularly movable in unison about a common axis whereby the area presented by one to the draft is increased as that of the other is diminished.

1l. A machine of the class described having, an operating tool and an exhaust pipe arranged to withdraw waste material caused by the operation of said tool in combination with a valve for controlling said pipe, a movable member operated by presentation of the work for partially opening said valve, and a member having an actuating connection with said movable member and of suicient area to be operated by the exhaust current for thereafter completing the opening movement.

l2. A machine of the class described having, in combination, a plurality of operating tools, separate passages leading from each tool to an exhaust pipe, and means located in the path of presentation of the work to the tools and adapted to be operated upon presentation of a piece of work to any selected tool for concentrating the whole draft upon that tool.

ln testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

VILLIAM A. REED.

Witnesses:

CHESTER E. Roenes, RUTH E. VARD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

